19985927168

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{1151}}^1$

素因数の和:1749

約数の個数: 88

約数和(自身を含む): 41352413184

約数和(自身を除く): 21366486016

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 547, 992, 1024, 1094, 1151, 1984, 2188, 2302, 3968, 4376, 4604, 7936, 8752, 9208, 15872, 16957, 17504, 18416, 31744, 33914, 35008, 35681, 36832, 67828, 70016, 71362, 73664, 135656, 140032, 142724, 147328, 271312, 280064, 285448, 294656, 542624, 560128, 570896, 589312, 629597, 1085248, 1141792, 1178624, 1259194, 2170496, 2283584, 2518388, 4340992, 4567168, 5036776, 8681984, 9134336, 10073552, 17363968, 18268672, 19517507, 20147104, 36537344, 39035014, 40294208, 78070028, 80588416, 156140056, 161176832, 312280112, 322353664, 624560224, 644707328, 1249120448, 2498240896, 4996481792, 9992963584, 19985927168]

約数ペア:

[(1, 19985927168), (2, 9992963584), (4, 4996481792), (8, 2498240896), (16, 1249120448), (31, 644707328), (32, 624560224), (62, 322353664), (64, 312280112), (124, 161176832), (128, 156140056), (248, 80588416), (256, 78070028), (496, 40294208), (512, 39035014), (547, 36537344), (992, 20147104), (1024, 19517507), (1094, 18268672), (1151, 17363968), (1984, 10073552), (2188, 9134336), (2302, 8681984), (3968, 5036776), (4376, 4567168), (4604, 4340992), (7936, 2518388), (8752, 2283584), (9208, 2170496), (15872, 1259194), (16957, 1178624), (17504, 1141792), (18416, 1085248), (31744, 629597), (33914, 589312), (35008, 570896), (35681, 560128), (36832, 542624), (67828, 294656), (70016, 285448), (71362, 280064), (73664, 271312), (135656, 147328), (140032, 142724)]